Bio:
Email: 3223611795@qq.com
汪小强(1996—),男,大学本科,主要从事新型肥料开发;3223611795@qq.com
为探究不同底肥配施含腐殖酸玉米专用液体肥对玉米生长的影响,开展了田间小区试验。试验共设置5个处理,分别施用不同的底肥,考察了玉米的生长发育及产量情况。结果表明:底肥施用复合肥(N-P2O5-K2O分别为18-18-18、17-18-19)的处理在株高、茎粗、叶片叶绿素相对含量(SPAD值)方面均表现较好,籽粒产量分别达到12 412.10、12 163.94 kg/hm2;底肥施用磷酸氢二铵(18-46-0)+复合肥(24-17-10)的处理可获得最大青储产量(87 862.50 kg/hm2)。在春播玉米种植过程中,若以获得籽粒产量为主,可施用平衡型复合肥为底肥并配施含腐殖酸玉米专用液体肥;若以收获青储为主,可施用高氮低钾肥为底肥并配施含腐殖酸玉米专用液体肥。
A field plot experiment is conducted to investigate the effects of different base fertilizers combined with the maize specific liquid fertilizer containing humic acid on maize growth. The experiment sets up 5 treatments and applies different base fertilizers to investigate the growth, development, and yield of maize. The results show that the application of compound fertilizers (N-P2O5-K2O=18-18-18 and 17-18-19, respectively) as base fertilizer shows good performance in plant height, stem thickness, and chlorophyll relative content (SPAD value) of leaves, with grain yields of 12 412.10 and 12 163.94 kg/hm2, respectively. The treatment of applying diammonium hydrogen phosphate (18-46-0)+compound fertilizer (24-17-10) as base fertilizer achieves the maximum silage yield (87 862.50 kg/hm2). In spring maize planting, if the main focus is to obtain grain yield, balanced compound fertilizer can be applied as the base fertilizer and supplemented with the maize specific liquid fertilizer containing humic acid. If harvesting silage is the main focus, high nitrogen and low potassium fertilizer can be used as the base fertilizers, supplemented with the maize specific liquid fertilizer containing humic acid.